See also stories tagged with Friction
Search results for friction
Scientists Investigate Cause of 'Singing Dunes'
Dec 15, 2009 |
4.4 / 5 (21) |
7
(PhysOrg.com) -- In more than 30 locations around the world, the phenomenon of singing sand dunes has intrigued explorers, tourists, and scientists. When an avalanche occurs or even when the sand is pushed ...
The Physics of Pizza Tossing
Apr 09, 2009 |
3.6 / 5 (13) |
6
(PhysOrg.com) -- As dough flies through the air, transforming from a ball into a disk in the chef’s experienced hands, pizza tossing can definitely be thought of as an art. But, as a recent study shows, pizza ...
Physicists Investigate Controversy over Room-Temperature Ice
Aug 05, 2008 |
4.4 / 5 (39) |
8
(PhysOrg.com) -- By confining water in nano-sized spaces, physicists from Leiden University in the Netherlands have turned water into ice at room temperature. While it’s not the first time scientists have created room-temperature ...
Carbon Nanotube Windmills Powered by 'Electron Wind'
Jul 08, 2008 |
4.7 / 5 (65) |
12
Theoretical physicists from Lancaster University in the UK have designed a nanomotor that operates by a novel mechanism: an electron wind.
Another piece in the dark matter puzzle
Oct 05, 2007 |
4.1 / 5 (73) |
11
Most scientists agree that most of the matter in the universe is dark. Dark matter, which is undetectable through direct observation, can only be inferred because of its effects on the matter that we can see.
Experiment to Clarify Ancient Physics Discovery Yields More Questions
Aug 28, 2007 |
4.5 / 5 (84) |
0
In approximately 600 B.C., the Greek philosopher Thales of Miletos discovered that rubbing certain materials together, such as amber and wool, can cause both to become electrically charged, one positive and one negative. ...
Tactile sensor acts as a human finger in minimally invasive surgery
Jun 27, 2007 |
4.6 / 5 (28) |
0
Researchers have designed a millimeter-sized sensor that has many of the tactile abilities of a human finger: it can sense the magnitude and the position of an applied force, slippage of a grasping tool, and ...
Microswimmer propels itself with near-zero friction
Jun 04, 2007 |
4.5 / 5 (47) |
0
Scientists have found that a very slender micro-sized swimmer can propel itself without friction by surface treadmilling. The microswimmer moves by generating backward surface motion at the front end of itself, which is then ...
Nanobubbles exist, and are more stable than previously thought
Apr 02, 2007 |
4 / 5 (42) |
0
When William Ducker, a professor at the University of Melbourne in Australia started experiments on so-called nanobubbles that form as a gas state on the boundary between liquid and gas, he fully expected to ...
Can expert reasoning be taught?
Feb 09, 2007 |
4.5 / 5 (63) |
0
In addition to mastering a large body of knowledge, successful researchers must acquire a host of high-level cognitive skills: critical thinking, "framing" a problem, ongoing evaluation of the solution as it ...
Dark Energy And The Inverse Square Law
Jan 25, 2007 |
4.5 / 5 (61) |
0
“Newton’s inverse-square law has been around for a while,” Daniel Kapner tells PhysOrg.com. “But, by testing this law, we’re looking for new physics.” The new physics Kapner and his colleagues are looking for in their recent ...
Superconductor magnet spacecraft heat shield being developed
Nov 26, 2009 |
4.8 / 5 (44) |
28
(PhysOrg.com) -- European space agencies and an aerospace giant are developing a new re-entry heat shield that will use superconductor magnets to generate a magnetic field strong enough to deflect the superhot ...
Tiny Train Model May be World's Smallest (w/ Video)
Oct 26, 2009 |
4.5 / 5 (13) |
3
(PhysOrg.com) -- David Smith, who has been building model railroads since 1965, has always had a preference for the smaller scale train models. His most recent project is a five-car train that runs through ...
Giving cockroaches the slip (w/ Video)
Oct 13, 2009 |
5 / 5 (13) |
5
(PhysOrg.com) -- A breakthrough by scientists at Cambridge University may terminate the threat of termites, cockroaches and other pests such as ants and locusts - responsible for billions of pounds worth of ...
Springs built from nanotubes could provide big power storage potential
Nanotechnology / Nanomaterials
Sep 21, 2009 |
4.4 / 5 (15) |
10
(PhysOrg.com) -- New research by MIT scientists suggests that carbon nanotubes -- tube-shaped molecules of pure carbon -- could be formed into tiny springs capable of storing as much energy, pound for pound, ...
